Moroni, Utah has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 31.4 °F (low) to 62.7 °F (high). Annual precipitation averages 9.7 Inches. Moroni is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 12.8 °F | 37.0 °F | 0.9 in. |
| February | 18.0 °F | 42.3 °F | 0.94 in. |
| March | 25.0 °F | 52.8 °F | 0.84 in. |
| April | 29.6 °F | 59.8 °F | 0.91 in. |
| May | 36.8 °F | 69.7 °F | 0.85 in. |
| June | 44.5 °F | 81.6 °F | 0.59 in. |
| July | 52.3 °F | 89.3 °F | 0.62 in. |
| August | 50.8 °F | 87.4 °F | 0.63 in. |
| September | 41.5 °F | 78.7 °F | 0.9 in. |
| October | 30.9 °F | 65.2 °F | 0.84 in. |
| November | 21.3 °F | 50.6 °F | 0.75 in. |
| December | 13.4 °F | 37.4 °F | 0.95 in. |
| Annual | 31.4 °F | 62.7 °F | 9.72 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |